Cooper has been learning about programming and computer security since he was a young child. Radicalized by the anti-war movement in 2003, he realized that his technology skills could be best used in the service of activism. Since then he has helped found the hackbloc tech activist collective and has done technology work for several non-profits and activist groups including Greenpeace, Adbusters and Radical Designs. He also contributes to a number of open source software projects such as Ethersheet. As a staff technologist at EFF, Cooper works on Privacy Badger and advocates for the privacy and security of Internet users.